linux/arch/arm64/kernel/vdso
Will Deacon e35123d83e arm64: lto: Strengthen READ_ONCE() to acquire when CONFIG_LTO=y
When building with LTO, there is an increased risk of the compiler
converting an address dependency headed by a READ_ONCE() invocation
into a control dependency and consequently allowing for harmful
reordering by the CPU.

Ensure that such transformations are harmless by overriding the generic
READ_ONCE() definition with one that provides acquire semantics when
building with LTO.

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2020-11-09 21:49:34 +00:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Makefile arm64: lto: Strengthen READ_ONCE() to acquire when CONFIG_LTO=y 2020-11-09 21:49:34 +00:00
gen_vdso_offsets.sh arm64: Fix a broken copyright header in gen_vdso_offsets.sh 2020-10-20 12:33:01 +01:00
note.S arm64: vdso: Annotate for BTI 2020-05-07 17:53:20 +01:00
sigreturn.S arm64: vdso: Disable dwarf unwinding through the sigreturn trampoline 2020-06-23 14:47:03 +01:00
vdso.S arm64: vdso: Annotate for BTI 2020-05-07 17:53:20 +01:00
vdso.lds.S arm64/vdso: Add time namespace page 2020-07-24 13:15:20 +01:00
vgettimeofday.c arm64: vdso: Include common headers in the vdso library 2020-03-21 15:24:01 +01:00